Brown 2017.

Study characteristics
Methods	Study design: randomized controlled trial Study grouping: parallel group
Participants	Substance: various substances Baseline characteristics Mindfulness‐based intervention Number randomized: 15 Control 1 Number randomized: 13 Overall Number randomized: 28 Included criteria: recent report to or open case with child protective services, case low‐to‐moderate risk and involved parental substance use as presenting problem, children remained in the home or parents had weekly visitation, parent English speaking Excluded criteria: case involved sexual abuse, family in extreme crisis Number missing: 7 Reason missing: "too much on plate", moved, personal life changes, unreachable Baseline differences: none Age: 31 Percent female: 81% Race/Ethnicity: 71.4% White, 14.3% Latinx, 9.5% Black, 4.5% other
Interventions	Intervention characteristics Mindfulness‐based intervention Group name: Mindfulness‐oriented recovery enhancement Child Welfare Theory: Garland (2013) Duration: 6 weeks Timing: 1x week for 1 hour Delivery: individual Providers: principal investigator trained in mindfulness Co‐intervention: none Integrity: not reported Compliance: not reported Control 1: No treatment control Co‐intervention: case management as usual
Outcomes	Treatment acceptability (attrition) Outcome type: dichotomous outcome Reporting: fully reported Direction: lower is better Data value: endpoint Time point: post‐treatment
Identification	Sponsorship source: none reported Country: USA Setting: not residential Authors name: Samantha Marie Brown Institution: University of Denver Email: not available Address: not available COI: not reported Diagnosis tool: Mini International Neuropsychiatry Interview; Simple Screening Instrument for Substance Abuse Diagnosis type: formal Funding: none reported Journal: dissertation Publication type: dissertation Secondary Publications: none
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Judgement comment: not reported
Allocation concealment (selection bias)	Unclear risk	Judgement comment: not reported
Blinding of participants and personnel (performance bias) All outcomes	High risk	Judgement comment: no blinding
Blinding of outcome assessment (detection bias) Treatment acceptability (attrition)	Low risk	Objective measure
Incomplete outcome data (attrition bias) All outcomes	Low risk	Judgement comment: drop out rates and reasons similar across groups (p. 41)
Selective reporting (reporting bias)	Unclear risk	Judgement comment: no protocol available, no statement of primary outcome
Other bias: equivalence of baseline characteristics (selection bias)	Low risk	Judgement comment: no baseline differences